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Application filed by Bbc Brown Boveri & CiefiledCriticalBbc Brown Boveri & Cie
Application grantedgrantedCritical
Publication of AT172872BpublicationCriticalpatent/AT172872B/de
AT172872D1951-05-311951-06-18Schaltung zur Vorgabe des Geschwindigkeitsverlaufes bei einer durch Gasentladungsröhren gesteuerten Leonardgruppe
AT172872B
(de)